The listing, Lightly Used - TRENDnet - 2-Port USB KVM Switch Kit - Free US Shipping - Comes With Cables has ended.
I used this only sporadically for about a year. This thing works great. Switch between two computers and use just one monitor, keyboard and mouse.
Free US shipping. International shipping is free at 500 or more credits, otherwise it's $5.
Uses USB and VGA connectors only, no PS/2 connectors on this TK-207 model. Description below is for slightly different model. Sorry I don't know off hand what are the differences between this item and the model TK-207 K (Version v1.1R) described on the TRENDnet site on this page: http://www.trendnet.com/products/proddetail.asp?prod=105-TK-207K&cat=105
Description from TRENDnet:
"The 2-Port USB KVM Switch lets you manage two PCs with just one set of keyboard, monitor, and mouse. Switch between two PCs with a simple press of a button! Separate sets of KVM cables are included with the KVM Switch, so users can start controlling 2 PCs instantly. The KVM cables also provide power to the KVM Switch, eliminating the need for a power adapter. Hot Key operations provide immediate access to features such as computer switching, and auto-scanning. With its Hot-Plug, and Audible Feedback, the 2-Port USB KVM Switch is the perfect choice for managing multiple PCs.
* 2-port KVM switch with VGA and USB connection to computers
* Device monitoring with Auto-Scan and audible feedback
* High quality 2048x1536 resolution for a crisp display
* Supports most operating systems and advance mouse designs
* All required cabling included"